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An Eruption of Field Elder Bugs?

An Eruption of Field Elder Bugs?


Grownup boxelder bug, Pittsburgh, 2017 (picture from Wikimedia Commons)

24 July 2024

July is actually Bug Season!

Yesterday Mike Fialkovich despatched information that it’s an enormous yr for boxelder bugs (Boisea trivittata) the place he works in New Stanton, PA.

Big numbers of field elder bug nymphs, New Stanton, 23 July 2024 (picture by Mike Fialkovich)

There was an enormous gathering of Boxelder Bugs at my office right now. Most have been nymphs however a number of adults have been current. I observed the adults have been quite a few not too long ago on the aspect of the constructing however right now the numbers of nymphs have been spectacular.

— e mail from Mike Fialkovich, 23 July 2024

I used to be a bit of shocked to see the swarms on non-native winged burning bush (Euonymus alatus).

Boxelder bug nymphs on winged burning bush, New Stanton, 23 July 2024 (picture by Mike Fialkovich)

As their title suggests, the boxelder bugs’ host plant is the field elder tree (Acer negundo), which is each native and plentiful.

Giant field elder tree alongside the path at Duck Hole, Pittsburgh, July 2021 (picture by Kate St. John)
Field elder leaves, Sept 2020 (picture by Kate St. John)

Quickly these nymphs will change into adults that seem like this … and the bug pictured at prime.

Grownup boxelder bug, Brooklyn, 2024 (picture from Wikimedia Commons)

Have you ever seen a swarm of boxelder bugs these days? If that’s the case, depart a remark and inform me the place.

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